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121915006 = 2318119163
BaseRepresentation
bin1110100010001…
…00011001111110
322111101220221121
413101010121332
5222202240011
620033021154
73010155223
oct721043176
9274356847
10121915006
11628aa604
12349b47ba
131c347775
141229794a
15aa82e71
hex744467e

121915006 has 8 divisors (see below), whose sum is σ = 182939544. Its totient is φ = 60935160.

The previous prime is 121914997. The next prime is 121915021. The reversal of 121915006 is 600519121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3220 + ... + 15943.

It is an arithmetic number, because the mean of its divisors is an integer number (22867443).

Almost surely, 2121915006 is an apocalyptic number.

121915006 is a deficient number, since it is larger than the sum of its proper divisors (61024538).

121915006 is a wasteful number, since it uses less digits than its factorization.

121915006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22346.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 121915006 is about 11041.5128492431. The cubic root of 121915006 is about 495.8523640335.

The spelling of 121915006 in words is "one hundred twenty-one million, nine hundred fifteen thousand, six".

Divisors: 1 2 3181 6362 19163 38326 60957503 121915006